T08 · Insecure Dependencies
Warning
- Location
setup.sh:5- Finding
Unpinned Third-Party Dependency Installation
- Content
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/dev/null 2>&1 npm install ethers ``` ### Technical Analysis The setup script installs `ethers` without specifying an exact version and without using a committed lockfile. Consequently, each installation may resolve a different package version and dependency graph from the npm registry. Although no evidence indicates that the current `ethers` package is malicious, mutable dependency resolution creates a supply-chain exposure. If the package, one of its transitive dependencies, or associated registry metadata is compromised, running the setup script could install attacker-controlled code. npm lifecycle scripts may execute during installation unless explicitly disabled. This is especially sensitive because the application is designed to run in an environment containing `PRIVATE_KEY`, a wallet credential capable of authorizing irreversible blockchain transactions. ### Attack Path 1. An attacker compromises a future `ethers` release, a transitive dependency, a maintainer account, or relevant npm registry metadata. 2. A user runs `bash setup.sh`. 3. `npm install ethers` resolves the currently published version rather than a previously reviewed and locked version. 4. npm downloads and installs the compromised package graph. 5. Malicious lifecycle code executes during installation, or malicious runtime code executes when `deploy.js` imports `ethers`. 6. The malicious code reads accessible environment variables or modifies transaction behavior. 7. If `PRIVATE_KEY` is present, the attacker may exfiltrate it or use it to sign unauthorized transactions. ### Impact Assessment Successful exploitation would execute code with the privileges of the user running `setup.sh` o ...[truncated 532 chars]- Remediation
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